CVE-2023-41164: Djangoproject Django

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

In Django 3.2 before 3.2.21, 4.1 before 4.1.11, and 4.2 before 4.2.5, django.utils.encoding.uri_to_iri() is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.

Affected products

• Djangoproject Django: from 3.2, before 3.2.21 (fixed in 3.2.21); from 4.1, before 4.1.11 (fixed in 4.1.11); from 4.2, before 4.2.5 (fixed in 4.2.5)
• Fedoraproject Fedora: version 39 only

Published 2023-11-03. Last modified 2026-06-17.